Bonds, lone pairs, and shells probed by means of on-top dynamical correlations

Stefano Pittalis, Daniele Varsano, Alain Delgado +1

The Electron Localization Function (ELF) by Becke and Edgecombe [J. Chem. Phys. {\bf 92}, 5397 (1990)] is routinely adopted as a descriptor of atomic shells and covalent bonds. Sin…